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Recent Accounting Developments	12 Months Ended
Recent Accounting Developments	Dec. 31, 2012
Recent Accounting Developments [Abstract]
Recent Accounting Developments	20. Recent Accounting Developments In June 2011, the FASB amended existing guidance and eliminated the option to present the components of other comprehensive income as part of the statement of changes in shareholder's equity. The amendment requires that comprehensive income be presented either in a single continuous statement or in two separate consecutive statements. The adoption of this amendment had no impact on the consolidated financial statements as the current presentation of comprehensive income complied with this amendment. In May 2011, the FASB issued an amendment to achieve common fair value measurement and disclosure requirements between U.S. and International accounting principles. Overall, the guidance is consistent with existing U.S. accounting principles; however, there are some amendments that change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The effect of adopting this standard did not have a material effect on the Company's operating results or financial condition.